Abstract: A cylindrical magnetron sputtering target assembly includes a head and a main body connecting to the head. The main body includes a target, a protecting element located partially around the target, and an insulating assembly. The insulating assembly includes at least one insulating element. The insulating element is fastened to the inner sidewall of the inner plate.

Abstract: A magnetic core for cylindrical magnetron sputtering target includes a housing and a magnet array. The housing includes a mounting plate and a base. The magnet array is mounted in the mounting plate and is enclosed in the housing. The magnet array includes a plurality of magnet segments stacked end to end.

Abstract: A vacuum deposition device includes a coating chamber. The coating chamber defines a top wall and a bottom wall. A cooling device is defined in the top or bottom wall. The cooling device includes a cooling runner formed in the top or bottom wall defining the cooling device.

Abstract: An exemplary embodiment of machine motion control system for testing electronic devices includes a machine and a control module electrically connected to the machine. The machine secures the electronic devices and includes a sensing unit and a servo unit, the sensing unit obtains different test parameters of the electronic devices to generate corresponding sensed signal. The control module includes a signal conversion unit electrically connected to the sensing unit and a main control circuit, the main control circuit is electrically connected to the signal conversion unit and the servo unit. The signal conversion unit converts the sensed signal into corresponding command signal, and the main control circuit drives and controls the servo unit to adjust the motion state and test strength on the electronic device according to the command signal.

Abstract: A machine motion control system includes a number of moving parts for securing test electronic devices, a machine and an axis control card mounted on the machine. The machine includes a number of servo modules and a number of sensing units. The servo modules drive and control the corresponding moving parts on the machine. Each sensing unit is electrically connected to a corresponding moving part; the sensing units are operable to sense and transmit location information of the moving parts and the machine. The axis control card is electrically connected to the moving parts, the machine, and the sensing units. The axis control card receives location information of each moving part and processes the location information to generate a corresponding command signal, and transmits the generated command signal to the servo modules to control and adjust the moving parts.

Abstract: A machine motion control system includes a number of moving parts for securing test electronic devices, a machine and an axis control card mounted on the machine. The machine includes a number of servo modules and a number of sensing units. The servo modules drive and control the corresponding moving parts on the machine. Each sensing unit is electrically connected to a corresponding moving part; the sensing units are operable to sense and transmit location information of the moving parts and the machine. The axis control card is electrically connected to the moving parts, the machine, and the sensing units. The axis control card receives location information of each moving part and processes the location information to generate a corresponding command signal, and transmits the generated command signal to the servo modules to control and adjust the moving parts.

Abstract: An exemplary embodiment of machine motion control system for testing electronic devices includes a machine and a control module electrically connected to the machine. The machine secures the electronic devices and includes a sensing unit and a servo unit, the sensing unit obtains different test parameters of the electronic devices to generate corresponding sensed signal. The control module includes a signal conversion unit electrically connected to the sensing unit and a main control circuit, the main control circuit is electrically connected to the signal conversion unit and the servo unit. The signal conversion unit converts the sensed signal into corresponding command signal, and the main control circuit drives and controls the servo unit to adjust the motion state and test strength on the electronic device according to the command signal.

Abstract: A step motor driving apparatus includes a micro control unit (MCU), a pulse generator, a first step motor driver, a second step motor driver, and a communication port. The first step motor driver is configured for driving a first step motor and connected to the MCU. The second step motor driver is configured for driving a second step motor and connected to the MCU. The MCU is connected to the second step motor driver via the pulse generator. The pulse generator is configured to supply pulse signals to the second step motor driver. The communication port is connected to the MCU. The MCU receives a corresponding command from an external control apparatus via the communication port. The MCU selectively controls the first step motor driver to drive the first step motor or controls the second step motor driver to drive the second step motor according to the command.

Abstract: A step motor driving apparatus includes a micro control unit (MCU), a pulse generator, a first step motor driver, a second step motor driver, and a communication port. The first step motor driver is configured for driving a first step motor and connected to the MCU. The second step motor driver is configured for driving a second step motor and connected to the MCU. The MCU is connected to the second step motor driver via the pulse generator. The pulse generator is configured to supply pulse signals to the second step motor driver. The communication port is connected to the MCU. The MCU receives a corresponding command from an external control apparatus via the communication port. The MCU selectively controls the first step motor driver to drive the first step motor or controls the second step motor driver to drive the second step motor according to the command.